We are in the golden age for the search for high-redshift galaxies. A specific class of such galaxies, the Lyman Alpha Emitters (LAEs) have rapidly been gaining popularity as probes of the epoch of reionization, galaxy evolution and the dust enrichment of early galaxies; a LAE has recently been confirmed at z=8.6, making it the farthest astrophysical object known. Coupling state of the art cosmological simulations with a physically motivated, self-consistent model for LAEs, we aim to put precious constraints on their elusive physical properties, build a bridge between the high-redshift and the local Universe (the Milky Way), gain insights on reionization and make predictions for future instruments such as the Atacama Large Millimeter Array (ALMA) and the James Webb Space Telescope (JWST).

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